Hg原子6^3P1→6^1So态的系际交叉跃迁及其6^1P1态与6^3P1态的组态混合

Hg原子6^3P1→6^1So态253.652nm紫外辐射是系际交叉路迁最著名的一例，可归因于其单重态6^1P1与三重态6^3P1的组合混合。计算结果表明，对于Hg原子6s6p组态，LS耦合方式仍是其较好描述。     

Hg原子光谱中的253.652nm互组合线

Ｈｇ原子光谱中的２５３．６５２ｎｍ互组合线翁斯灏（中国高科技中心，华东师范大学物理系，上海２０００６２）一、互组合跃迁１９１４年，德国物理学家Ｊ．Ｆｒａｎｃｋ和Ｇ．Ｈｅｒｔｚ利用电子与气体原子在非弹性碰撞中能量交换的分立特征，证明原子体系量子态的存在...     

高温煤气脱硫 Ⅱ.锌铁基脱硫剂的化学形态

应用穆斯堡尔谱考察了不同的制备条件对锌铁基脱硫剂相态组成的影响。提高焙烧温度和延长焙煤时间均有利于ZnFe2O4的形成，但焙浇温度过高引起过度烧结从而降低了脱硫剂的活性。原脱硫剂中的ZnFe2O4和α-Fe2O3在脱硫过程中转化成零价铁、碳化铁和硫化铁。此外还形成了一定数量的高自旋Fe^2 含铁相。再生处理后脱硫剂的化学组成基本上可复至起始状态。     

Mssbauer Study of Coal Desulfurization by Microwave Irradiation Combined With Manetic-Separation and Chemical Acid-Leaching

~(57)Fe Mssbauer spectroscopy was used to study the mechanism and regularity of coal desulfurization by microwave irradiation combined with magnetic-separation and with chemical acid-leaching. The results of phase analyses show that the decomposing reaction of pyrite intrinsic in coal, caused by the selective dielectric heating of microwave electromagnetic energy, FeS_2→Fe_(1-x)S→FeS, consecutively progresses towards the right-hand side with increased irradiation time. The whole process of microwave desulfurization of raw coal consists of the initiation, the promotion, and the saturation stages. The optimum desulfurization efficiency for microwave irradiation combined with magnetic-separation treatment and with chemical acid-leaching treatment can be attained by appropriately controlling the irradiation time to enable the corresponding microwave treatment to lie in the promotion stage and the saturation stage, respectively.     

核四极共振（NQR）

简述核能级的电四极超精细分裂及核四极共振基本原理，并就与核四极共振应用密切有关的，四极核所在处电场梯度（ＥＦＧ）张量的来源进行讨论。